PMID- 20035572
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20100802
LR  - 20100427
IS  - 1520-5827 (Electronic)
IS  - 0743-7463 (Linking)
VI  - 26
IP  - 9
DP  - 2010 May 4
TI  - Photochromic nanostructures based on diarylethenes with perylene diimide.
PG  - 6702-7
LID - 10.1021/la9040387 [doi]
AB  - A bisthienylethene-functionalized perylene diimide (BTE-PDI) photochromic dyad 
      was synthesized for self-assembly into 1-D nanotubes by a reprecipitation method. 
      SEM and TEM observations showed that the nanotubes were formed from their 0-D 
      precursors of hollow nanospheres. HR-TEM images revealed that both the 
      nanospheres and the nanotubes have highly ordered lamellar structure, indicating 
      the hierarchical process during assembly. The IR and XRD results revealed that 
      DAE-PDI molecules were connected through intermolecular hydrogen bonds to form 
      building blocks that self-assembled into nanostructures. Electronic absorption 
      and fluorescence spectroscopic results indicated the H-aggregate nature of the 
      self-assembled nanostructures. Competition and cooperation between the 
      dipole-dipole interaction, intermolecular pi-pi stacking, and 
      hydrophilic/hydrophobic interaction are suggested to result in nanostructures. 
      Reconstruction was found to happen during the morphology transition progress from 
      the 0-D nanospheres to the 1-D nanotubes, which was driven by donor-acceptor 
      dipole-dipole interactions. Green emission at 520 nm originating from the DAE 
      subunit was observed for the aggregates of vesicles and nanotubes, which could be 
      regulated by photoirradiation with 365 nm light, suggesting the nanoaggregates to 
      be photochromic switches.
FAU - Ma, Lulu
AU  - Ma L
AD  - Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, 
      School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, 
      PR China.
FAU - Wang, Quanbo
AU  - Wang Q
FAU - Lu, Guifen
AU  - Lu G
FAU - Chen, Ruiping
AU  - Chen R
FAU - Sun, Xuan
AU  - Sun X
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Langmuir
JT  - Langmuir : the ACS journal of surfaces and colloids
JID - 9882736
EDAT- 2009/12/29 06:00
MHDA- 2009/12/29 06:01
CRDT- 2009/12/29 06:00
PHST- 2009/12/29 06:00 [entrez]
PHST- 2009/12/29 06:00 [pubmed]
PHST- 2009/12/29 06:01 [medline]
AID - 10.1021/la9040387 [doi]
PST - ppublish
SO  - Langmuir. 2010 May 4;26(9):6702-7. doi: 10.1021/la9040387.